Matt Damon, Jessica Alba Heat Up Trailer for Showtime’s Climate-Change Series ‘Years of Living Dangerously’ (Video)

James Cameron is harnessing some serious star power in hopes of alerting people about the dangers of global warming.

A new trailer for Cameron’s upcoming docu-series “Years of Living Dangerously” has emerged on the internet, featuring a cavalcade of celebrities including Matt Damon, Ian Somerhalder, Michael C. Hall and Jessica Alba who’ll help tell the story of how climate change is causing havoc with the world.